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-   -   89 yj 4.2 misfire coldstart idle (https://www.jeepscanada.com/jeep-yj-forum-21/89-yj-4-2-misfire-coldstart-idle-123167/)

james.mc 06-04-2012 11:19 AM

Re: 89 yj 4.2 misfire coldstart idle
 
five points

Sounds like you might have a lot of crud in the carb already. A new fuel filter won't stop stuff already in your carb from blocking the idle tubes. Try taking the top off the carb and cleaning out any rubbish you find in there and then clean the idle tubes again.

five points 06-04-2012 10:43 PM

Re: 89 yj 4.2 misfire coldstart idle
 

Originally Posted by james.mc (Post 562488)
five points

Sounds like you might have a lot of crud in the carb already. A new fuel filter won't stop stuff already in your carb from blocking the idle tubes. Try taking the top off the carb and cleaning out any rubbish you find in there and then clean the idle tubes again.

Thanks ill give that a go. rob


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